英文關鍵字
black
chemical
contaminated
contamination
corrosion
crude
damage
danger
dangerous
dead
death
detail
dirty
disaster
disposal
dragonfly
dump
ecological
ecology
environment
environmental
flower
fluid
fly
fuel
hydrocarbons
industrial
industry
liquid
oil
petroleum
plant
poison
polluted
pollution
pond
sewage
sludge
soil
sources
survive
survived
toxic